Spraying mechanism.



` PATENTED JAN. 24, 1905.

w. T. YARD. SPRAYING MBGHANISM.

APPLICATION FILED JULY 30, 19404.

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@wi/lm@ o @o flozum Patented January 24, 1905.

PATENT OFFICE.

WILLIAM T. YARD, OF TRENTON, NEW JERSEY.

sPRAYlNG MECHANISM.

SPECIFICATION forming part of Letters Patent No. 780,928, dated January24, 1905.

application nea July 30,1904. V'saai No. 218,866.

The object to be secured by this invention yis the provision of novelmeans of a simple nature for economically and thoroughlyT distributingmaterial over a comparatively great area, said means being such that thespray can be more or less comminuted as desired and the directionthereof varied in order to properly operate upon the different varietiesof vegetation.

The preferredI embodiment of the invention is illustrated in theaccompanying drawings, wherein- Y Figure 1 isa side elevationof themachine. Fig. 2 is a detail perspective View of the nozzle andsupporting means therefor., Fig. 3 is a vertical sectional viewtherethrough. 4 is a detail verticalsectional view, on an enlargedscale, through the upper portion of the nozzle andl controlling-valve;'and Fig. 5`is a sectional view taken on the line 5 5 0f F ig. 3.

Similar reference-numerals indicate corresponding parts in all theigures of the drawings.

In the embodiment illustrated a suitable vehicle 6 is employed, in thepresent instance supported by wheels 7. vA storage tank or reservoir 8is suitably mounted on the vehic le and contains the usual agitatingmeans operated by an endless sprocket-chain 9, passing about wheels 10,attached, respectively, to the wheel 7 and said agitating mechanism.

The vehicle is provided with arearwardlyextending bar 11,and upon therearl end there- `of are pivotally-supported arms 12, the bolt 13, whichconnects said arms to the bar 11, also serving as a pivotal connectionfor the arms. The said arms are twisted between their ends, and theirrear ends are spaced apart to recelve therebetween a supportmg device inthe form of a block 14, carrying an .them and holding the same againstits pivotal movement. The standard 15 has its lower end bifurcated, asshown at 19, and the spaced legs 20, formed thereby, have their lowerends seated in recesses 21, formed in the front side of the block, wheresaid legs are held by suitable bolts 22. l

The spraying-nozzle consists of a body 23, that is substantially in theform of a T-coup- Y ling, having a depending stern 24 mounted in siredor well-known type of power-pump may Y be employed.

The discharge-'outlet of the nozzle, and consequently the outiiow ofliquid therefrom, is controlled by means of a valve, comprising a leverv30 pivoted between its ends, as shown at 31, in the bifurcation of thestandard 15, one end lof the lever extending on one side of the standardand constituting a trip, as shown a't 32, the other end carrying leatherand rubber washers 33, the lower of which is adapted .to rest snuglyupon the upper end of the collar 25, and thereby close thedischarge-outlet. The convexed spraying-head 34 is also carried by thisend of the lever, said head and washers 33 being attached thereto,preferably by means of a single clamping device, as a screw 35. In orderto urge the valve 7 into closed position against the pressure of theliquid, a

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coiled spring 36 is employed, the lower end of which bears upon thelever 30 directly above the nozzle, said lever having a retaining-leg 37received within the lower end of the spring. The upper end of saidspring is borne upon by a tension-varying block 38, having at its lowerend a depending retaining projection 39 received within the upper end ofthe spring. The block 28 is vertically slidable upon the standard andhas a longitudinally-disposed slot 40, through which passes aclamping-bolt 4l, secured to the standard and serving to hold the blockagainst movement.

The operation of the machine will, it is thought, be clear to any oneskilled in the art. As the vehicle is moved over the vegetation to besprayed the pump is operated, and thus the insecticide drawn from thestorage tank or reservoir is forced through the nozzle and projectedover such vegetation. It will be observed that in this structure, whichas a whole is very simple, the support can be adjusted, so that thenozzle may be tilted to any inclination desired. This is accomplished byloosening the clamping-bolt 17, swinging the standard andsupporting-block to the desired position, and afterward retightening thesaid bolt. Moreover, the fineness of the spray may be readily varied byplacing greater or less tension upon the spring 36, the greater thetension the more power being needed to open the valve, and consequentlythe finer the spray. Moreover-,this valve besides requiring the desiredpressure for spraying purposes serves, because of the spring-head, tospread the liquid as the same passes through the nozzle.

From the foregoing it is thought that the construction, operation, andmany advantages of the herein-described invention will be apparent tothose skilled in the art without further description, and it will beunderstood that various changes in the size, shape, proportion, andminor details of construction may be resorted to without departing fromthe spirit or sacriicing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a sprayer of the character described, the combination with asupporting device including a standard, of a nozzle mounted on thesupporting device at one side of the standard, a valve movably mountedon an intermediate portion of the standard and normally closing thenozzle, and means movably supported on the standard and bearing againstthe `side of the valve opposite the nozzle for yieldingly holding thevalve in closed condition.

2. In a sprayer of the character described, the combination with asupporting device including a standard, of a nozzle mounted on thesupporting device at one side of the standard, a valve pivotally mountedon an intermediate portion of the standard and normally closing thenozzle, a spring bearing against the side of the valve opposite thenozzle for yieldingly holding said valve in closed condition, and adevice slidably mounted on one side of the upper free end of thestandard and bearing against the spring to vary its tension.

3. In a sprayer of the character described, the combination with asupport including a base block and an upstanding bifurcated standardcarried thereby, of a nozzle mounted on the base-block and havingadischarge-outlet in its upper end, said nozzle being disposed at oneside of the standard, a valve pivoted in the bifurcation of the standardand normally closing the outletof the nozzle, said valve h aving aspraying-head, a coiled spring located at one side of the standard andbearing downwardly upon the valve, a tension-varying block slidabl ymounted on the standard and bearing against the spring, and aholding-bolt adjustably connecting the block and standard.

4. In a sprayer of the character described, the combination with avehicle, of spaced arms carried thereby and adjustable toward and fromeach other, a supporting device located between and adjustable withrespect to the arms, means for clamping the arms upon the supportingdevice to hold the same against movement, a reservoir mounted on thevehicle, a nozzle carried by the supporting device and adjustabletherewith, and a supplyconduit connecting the reservoir and nozzle.

5. In a sprayer of the character described, the combination with avehicle, of spaced arms carried thereby and adjustable toward and fromeach other, a supporting device located between the arms, a pivotconnecting the arms and supporting device, means for clamping the armsupon the supporting device to hold the same against movement on thepivot, a reservoir mounted on the vehicle, a nozzle carried by thesupporting device and adjustable therewith, and a supply-conduitconnecting the reservoir and nozzle.

6. In a sprayer of the character described, the combination with arms,of a support for the arms, a pivot connecting the arms at one end andsecuring the same to the support, a supporting device located betweenthe other ends of the arms, apivotal connection between the arms anddevice, a nozzle carried by the support, and a bolt connecting the armsfor drawing the same toward each other and thereby clamping thesupporting device between .them against pivotal movement.

7. In a sprayer of the character described, the combination withpivotally -associated arms, of means for supporting the arms` asupporting-block located therebetween, pivotal connections between theblock and arms, a connection between the arms for clamping the blockagainst pivotal movement, a .standard mounted on the block, a nozzlecarried by the block, and means for varying the outliow IOC support andhaving an outlet, a valve for con. trolling the outlet, a variablespring bearing against the valve, and a pipe connecting the storage-tankand the nozzle.

In testimony that I claim the foregoing as my own I have hereto aliixedmy signature in the presence of two witnesses.

WILLIAM T. YARD.

Witnesses:

ALVIN W.'SYKES, EMMA S. SYKES.

